<?xml version="1.0" encoding="utf-8"?>
<!--
  This file is part of the OCW taxonomy, which is an extension on the Dutch taxonomy (NT, Nederlandse Taxonomie) 
  Intellectual Property of the State of the Netherlands, Ministry of Culture, Education and Sciences (OCW, Ministerie van Onderwijs, Cultuur en Wetenschappen)
  Architecture: NT13 
  Version: 20190220.a
  Released by: Dienst Uitvoering Onderwijs (DUO)
  Release date: Mon Sep 10 15:05:51 CEST 2018
-->
<link:linkbase xmlns:gen="http://xbrl.org/2008/generic" xmlns:label="http://xbrl.org/2008/label" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xbrl.org/2008/generic http://www.xbrl.org/2008/generic-link.xsd http://xbrl.org/2008/label http://www.xbrl.org/2008/generic-label.xsd">
	<link:arcroleRef arcroleURI="http://xbrl.org/arcrole/2008/element-label" xlink:href="http://www.xbrl.org/2008/generic-label.xsd#element-label" xlink:type="simple"/>
	<link:roleRef roleURI="http://www.xbrl.org/2008/role/link" xlink:href="http://www.xbrl.org/2008/generic-link.xsd#standard-link-role" xlink:type="simple"/>
	<link:roleRef roleURI="http://www.xbrl.org/2008/role/label" xlink:href="http://www.xbrl.org/2008/generic-label.xsd#standard-label" xlink:type="simple"/>
	<gen:link xlink:role="http://www.xbrl.org/2008/role/link" xlink:type="extended">
		<gen:arc xlink:arcrole="http://xbrl.org/arcrole/2008/element-label" xlink:from="va-BR-OCW-WNT.S.1-durationperiod_loc" xlink:to="OCWWNT-BR-OCW-WNT.S.1-durationperiod_label_en" xlink:type="arc"/>
		<link:loc xlink:href="ocw-wnt-structure-rules-for.xml#va-BR-OCW-WNT.S.1-durationperiod" xlink:label="va-BR-OCW-WNT.S.1-durationperiod_loc" xlink:type="locator"/>
		<label:label id="OCWWNT-BR-OCW-WNT.S.1-durationperiod_label_en" xlink:type="resource" xlink:role="http://www.xbrl.org/2008/role/label" xlink:label="OCWWNT-BR-OCW-WNT.S.1-durationperiod_label_en" xml:lang="en">The periods of all contexts MUST be the duration of the current reporting year.</label:label>
	</gen:link>
</link:linkbase>